Means for preparing the heel seats of insoles



Oct. 20, -1942. H. McGRoRY 2,299,336

MEANS FOR PREPARING THE HEL SEATS OF INSOLES Filed Deo. l0. 1940 Sl X. n

HARRY MCGRORY INVENTOR,

Patented Oct. 20, 1942 UNHTED STATES QFFICE MEANS FOR PREPARING THE HEEL SEATS OF INSOLES 11 Claims.

This invention relates to means for preparing the heel seats of insoles and has for its main object the provision of means for simultaneously cutting a strip from the heel seat part and to provide the latter with a beveled marginal edge portion whereby to improve the lit of the heel seat part of the insole lat the heel seat ofv the shoe.

Another object of the invention is the provision of a device of the character described which can be utilized in cut-out machines which are readily available on the market.

A further object of the invention is to provide a Ydevice of the character described of such construction that it can be utilized for cutting and molding the heel seat parts of insoles of various sizes.

Another object of the invention is to provide the device with adjustable means for positioning the heel seat part Aof the insole in relationV to the cutter.

The above objects of the invention and other objects which might hereinafter appear will be fully understood from the following description considered with reference to the accompanying illustrative drawing.

In the drawing:

Fig. l is a top View of a die cutter and mold embodying the present invention;

Fig. 2 is a bottom view thereof;

Fig. 3 is a sectional View on the line 3 3 of Fig. 1, and shows more or less diagrammatically the plunger which coacts with the die cutter and mold in the cut-out machine;

Fig. 4 is a top plan view on a larger scale of the die mold and cutter;

Fig. 5 is a sectional view on the line 5 5 of Fig. 4;

Fig. 6 is a top plan view of a part of the insole prepared with the device embodying the present invention;

Fig. 7 is an edge view of the insole illustrated in Fm. 6, the U-shaped strip being removed.

Referring now to the drawing in detail the device embodying the present invention comprises a rigid frame or bed plate I0 on which the unitary die cutter and mold I2 is mounted. Said unitary cutter and mold has a iat lower surface which rests. on the flat upper surface of bed plate I0 and is held removably in stationary position on said bed plate by pins I3 fixed to and depending from the cutter and fitting into holes I3a in said bed plate. A plate I4 is supported for movement toward and laway from the upper surface of bed plate I0, said plate being spring projected upwardly by a plurality of springs I6 disposed around pins I8, respectively, which are fixed to and depend from the bottom surface of plate I4 and extend into openings 20 in bed plate I0. -Plate I4 is provided with an opening 22 which surrounds the die cutter land mold I2, they edge of'said opening. being` spaced from said die' cutter and mold. Said opening .has a forward part 22a Yfor the projection ofthe heel` breast covering flap of the insole. When plate I4 is in upwardly projected position the lower surface of plate I4 is approximately vat the same level as the upper edge of the die cutter.`

The die cutter comprises a .Li-shaped cutter 24 having a U-shaped cutting edge 25 andlaterally extending parts 26 eachhaving a straight edge 2. Said parts 26 extend laterally and outwardly of the opposite legs, respectively, of the .U -shaped cutting edge of the cutter. As shown said outing edges 2l are disposed between the laterally spaced ends and the opposite` end oi said U-shaped cutting edge. When the heel part of' the vinsole is subjected to the action of the cutting die a U-shaped strip 2,8 .is cut therefrom by the part of the -cutterY extending from one lateral cutting part 2.6 rearwardly of the cutter around the back thereof and then forwardly to the Aother lateral extending cutting part 26, and in addition cuts 28h areformed in' the insole forwardlyby the parts of the cutting die which extend forwardly of the lateral cutting parts 2b to the laterally spaced ends, respectively, of said U-shaped cutting edge. :The die cutter and mold includes a heel seat molding 'part 30 which is located at the inner side of die cutter 24, being seated in the recess 3l of cutter 2li, and being secured in said recess by a screw 3Ia. Said molding part rcomprises 4a .U-shaped ledge 32 which extends laterally of the inner surface of cutter 24 and is inclined downwardly from a point just below or inwardly of the top of the cutting `edge of the cutter 24 to the central depressed portion 34 of the mold. When the plunger 36 (indicated diagrammatically) of the cut-out machine of any suitable type, for example, a Knight cut-out machine, is actuated, it brings the work-piece, in this, vcase the heel part of the insole, into engagement with the die cutter and mold I2 for cutting the same and for shaping and molding Athe heel seat portion of said insole to provide the latter with a beveled edge part 38 extending between the cut vedge 39 and the inner part 4,0 indicated by the dotted line in Fig. 6. Further the central part 42 of the heel seat is brought into a somewhat concave form on its upper surface. Thus, the heel seat part of the insole is provided with a beveled marginal edge portion extending completely around said part. The heel breast flap of the insole is indicated at 43 in Fig. '7.

Provision is made for positioning the insole on plate I4 in relation to the die cutter and mold I2. For this purpose adjustable positioning plates are provided, said plates being movable .toward and away from each other and from the .rod 60 without turning the latter.

azeaee connected to pins 50 is provided for moving posi-"' tioning plates 44 simultaneously. Said members 54 are pivotally mounted on pivot .pins56 fixed to` anddepending from the lower surface of plate I4 and have slots 58 in their outer ends which are arranged in crossed relation. Alongitudinally mov- -able rod 60 is provided with a pin 62 which passes through the slots 58 inA both members 54 at the intersection thereof and rides in a longitudinally extending guide slot 64 provided in plate I4. One end of rod 60 has a threaded portion 66 which is engaged by a nut 68 threaded thereon, said nut projecting through an opening 'I0 in plate I4 and held against movement longitudinally of rod 60 whereby rotation of said nut is effective to move Rod 60 further is in engagement with a non-threaded guide lug 'I2 fixed to and projecting from the lower surface of plate I 4 and with a non-threaded guide lug .'14 which is also fixed to and projects from the lower surfaces of plate I4. Thus, by rotating nut 68 plates 44 can be readily adjusted for insoles of various sizes.

The position of the rear edge of the insole is determined by an adjustable plate 'I6 adjustably mounted on plate I4 at the rearof opening 22. Positioning plate 'I6 is provided with pins I8 and 80 which engage in guide slots 82 and 84, respectively, inplate I4. A wing nut v86 threaded on pin 'I8 is provided for securing positioning plate 'I6 releasably in adjusted position.

The manner of utilizing the above described device is largely apparent from the above description. It will be understood that a plurality of interchangeable unitary die cutter and mold members I2 can be provided to take care of insoles of various sizes. die cutter and mold members I2 are preferably provided with the pair of pins I3 thereof uniformly spaced for engagement with openings I3a in bed plate III. In using the device of the present invention, the latter is mounted in a suitable cut-out machine such as, for example, a Knight cut-out machine, which is well known to shoe manufacturers, for coaction with the plunger 36 of said machine. The insole to be subjected to the action of the device is placed in position, the grain or upper surface of the insole uppermost and the heel seat part thereof resting on plate I4 over opening 22 therein in the position determined in advance by the adjustment of plates 44 and 16, the peripheral edge of the heel seat part of the insole engaging the adjacent edges of said plates 44 and 16. covering flap 43 of the insole is projected through the front part 22a, of opening 22 so that the marginal'edge portion of the heel seat part lies flat on plate I4. When the insole is thus positioned on plate I4 the plunger 36 is depressed and engages the upper surface of the insole, clamping the latter to said plate, and forces the insole and the plate I4 downwardly in opposition to the action of springs I6, thereby bringing the heel seat part of the insole into engagement with the 'die cutter and mold I2 for cutting the U-shaped strip 28 therefrom, for providing the longitudi- For this purpose al1 of said f The heel breast f nally extending cuts 28D, and for shaping the heel seat part of the insole bythe action of mold 30 in conjunction with cutter 24 as described above.

While I have shown and described the preferred embodiment of my invention it will be understood that the latter may be embodied other- Ywise than as herein shown or described, and it will be also understood that in the illustrated embodiment certain changes in the details of construction and in the arrangement of parts may be made and will occur to skilled artisans in view of the present disclosure. Therefore, I do not wish to be limited to the form of the invention herein shown or described or to the details of construction thereof except to the extent which may be required by the scope of the appended claims.

Having thus described my invention, what I claim and desire to secure by Letters Patent is:

1. A device of the class described comprising a die cuter having a U-shaped cutting edge, and stationary means forming a molding surface disposed inwardly of and adjacent to the plane of said cutting edge, said'die cutter having an inner surface terminating in said U-shaped cutting edge and said molding surface having a bounding edge abutting said inner surface of said die cutter.

2. A device of the class described comprising a die cutter having a U-shaped cutting edge, and means in xed relation to said cutting edge forming a molding surface disposed inwardly of and adjacent to the plane of said cutting edge, said U-shaped cutting edge terminating in laterally spaced ends, and parts of said cutter disposed at the outer side thereof and having cutting edges extending laterally of the opposite legs, respectively, of said U-shaped cutting edge betweensaid ends, respectively, thereof and the opposite end of said U-shaped cutting edge, said molding sur-V face being' in inclined relation to the plane of` said U-shaped cutting edge and extending later ally of the inner side of said cutter.

3. A device of the class described comprising av die cutter having a U-shaped cutting edge, said4 cutter having parts provided with cutting edges, extending laterally and outwardly from the opposite legs of said U-shaped cutting edge inwardA ly of the free ends of the latter, and stationary means located at the inner side of said cutter andA forming a molding surface disposed inwardly of and adjacent to the plane of said U-shaped cut ting edge, said die cutter comprising a recessed member and said last mentioned means compris-- ing a member fitting in said recess in fixed relation to said recessed member.

4. A device of the'class described comprising a die cutter having a'U-shaped cutting edge, said cutter having parts provided with cutting edges extending laterally and outwardly from the opposite legs of said Ufshaped cutting edge inwardly of the free ends of the latter, and stationary means located at the inner side of said cutter and forming a molding surface disposed inwardly of and adjacent to the plane of'said cutting edge, said molding surface being in inclined relation to the planeV of said U- shaped cutting edge, and sloping downwardly from said cutting edge, the upper edge of said surface lying adjacent said cutting edge and conforming to the shape thereof.

5. A cutting device of the class described operable in conjunction with a plunger engageable with a Work-piece to be cut, said device comprising a spring-projected plate having an opening, a die cutter having `a cutting Aedge positioned in a plane adjacent the plane of said plate opening,

said plate being constructed and arranged to support the work-piece to be cut by said die and to be moved under the action of said plunger relatively to said die in a direction inwardly of said cutting edge so that the latter projects outwardly through said plate opening for cutting said work-piece, and means located at the inner side of said cutter and positioned inwardly of the plane of said cutting edge operable in conjunction with said cutter and said plunger for molding a marginal portion of the work-piece adjacent the cut edge thereof, said die cutter comprising a recessed member and said last mentioned means comprising a member fitting in said recess in fixed relation to said recessed member.

6. A cutting device of the class described operable in conjunction with a plunger engageable with a work-piece to be cut, said device comprising a spring-projected plate having an opening, a die cutter having a U-shaped cutting 'edge positioned in a plane adjacent the plane of said plate opening, said plate being constructed and arranged to support the Work-piece to be cut by said die and to be moved under the action of said plunger relatively to said die in a direction inwardly of said cutting edge so that the latter projects outwardly through said plate opening for cutting said work-piece, means located at the inner side of said cutter and positioned inwardly of the plane of said cutting edge operable in conjunction with said cutter and said plunger for molding a marginal portion of the work-piece adjacent the cut edge thereof, said U-shaped cutting edge terminating in laterally spaced ends, and parts of said cutter disposed at the outer side thereof and having cutting edges extending laterally of the opposite legs, respectively, of said U- shaped cutting edge between said ends, respectively, thereof and the opposite end of said U-shaped cutting edge.

'7. A cutting device of the class described operable in conjunction with a plunger engageable with a work-piece to be cut, said device comprising a spring-projected plate having an opening, a die cutter having a U-shaped cutting edge positioned in a plane adjacent the plane of said plateopening, said plate being constructed and arranged to support the work-piece to be cut by said die and to be moved under the action of said plunger relatively to said die in a direction inwardly of said cutting edge so that the latter projects outwardly through said plate opening for cutting said work-piece, and means located adjacent the inner surface of said die cutter forming a molding surface disposed inwardly of and adjacent to the plane of said cutting edge, said die cutter comprising a recessed member and said last mentioned means comprising a member tting in said recess in xed relation to said recessed member.

8. A cutting device of the class described operable in conjunction with a plunger engageable with a work-piece to be cut, said device comprising a spring-projected plate having an opening, a die cutter having a U-shaped cutting edge positioned in a plane adjacent the plane of said plate opening, said plate being constructed and arranged to support the work-piece to be cut by said die and to be moved under the action of said plunger relatively to said die in a direction inwardly of said cutting edge so that the latter projects outwardly through said plate opening for cutting said work-piece, and means located adjacent the inner surface of said die cutter forming a molding surface disposed inwardly of and adjacent to the plane of said cutting edge, said molding surface being in inclined relation to the plane of said cutting edge and sloping downwardly from the inner side of said U-shaped cutting edge.

9. A cutting device of the class described operable in conjunction with a plunger engageable with a work-piece to be cut, said device comprising a spring-projected plate having an opening, a die cutter having a cutting edge positioned in a plane adjacent the plane of said plate opening, said plate being constructed and arranged to support the work-piece to be cut by said die and to be moved under the action of said plunger relatively to said die in a direction inwardly of said cutting edge so that the latter projects outwardly through said plate opening for cutting said work-piece, and means on said plate for positioning the work-piece thereon in relation to said cutter, said positioning means comprising members mounted on the upper surface of said plate for movement at opposite sides of said opening toward and away from each other and v toward and away from the adjacent edges of said opening.

10. A cutting device of the class described operable in conjunction with a plunger engageable With a work-piece to be cut, said device comprising a spring-projected plate having an opening, a die cutter having a cutting edge positioned in a plane adjacent the plane of said plate opening, said plate being constructed and arranged to support the work-piece to be cut by said die and to be moved under the action of said plunger relatively to said die in a direction inwardly of said cutting edge so that the latter projects outwardly through said plate opening for cutting said workpiece, means on said plate for positioning the work-piece thereon in relation to said cutter, said positioning means comprising members mounted on said plate for movement at opposite sides of said opening toward and away from the adjacent edges of said opening, and means for moving said members simultaneously.

11. A cutting device of the class described operable in conjunction with a plunger engageable with a work-piece to be cut, said device comprising a spring-projected plate having an opening, a die cutter having a cutting edge positioned in a plane adjacent the plane of said plate opening, said plate being constructed and arranged to support the work-piece to be cut by said die and to be moved under the action of said plunger relatively to said die in a direction inwardly of said cutting edge so that the latter projects outwardly through said plate opening for cutting said workpiece, means on said plate for positioning the work-piece thereon in relation to said cutter, said positioning means comprising members mounted on said plate for movement at opposite sides of said opening toward and away from the adjacent edges of said opening, means for moving said members simultaneously comprising a pair of lever members connected to said positioning members, respectively, said lever members having slotted end portions arranged in crossed relation, and a longitudinally movable rod having a part projecting into said slotted end portions at the intersection thereof whereby longitudinal movement of said rod is effective to actuate said lever members.

HARRY MCGRORY. 

